java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 02:19:06,069 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 02:19:06,071 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 02:19:06,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 02:19:06,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 02:19:06,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 02:19:06,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 02:19:06,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 02:19:06,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 02:19:06,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 02:19:06,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 02:19:06,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 02:19:06,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 02:19:06,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 02:19:06,094 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 02:19:06,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 02:19:06,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 02:19:06,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 02:19:06,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 02:19:06,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 02:19:06,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 02:19:06,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 02:19:06,105 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 02:19:06,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 02:19:06,106 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 02:19:06,107 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 02:19:06,108 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 02:19:06,109 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 02:19:06,109 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 02:19:06,111 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 02:19:06,111 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 02:19:06,112 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 02:19:06,112 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 02:19:06,112 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 02:19:06,113 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 02:19:06,114 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 02:19:06,114 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 02:19:06,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 02:19:06,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 02:19:06,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 02:19:06,130 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 02:19:06,131 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 02:19:06,131 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 02:19:06,131 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 02:19:06,131 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 02:19:06,131 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 02:19:06,132 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 02:19:06,132 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 02:19:06,132 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 02:19:06,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 02:19:06,133 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 02:19:06,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 02:19:06,133 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 02:19:06,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 02:19:06,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 02:19:06,134 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 02:19:06,134 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 02:19:06,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 02:19:06,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 02:19:06,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 02:19:06,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 02:19:06,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:19:06,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 02:19:06,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 02:19:06,136 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 02:19:06,137 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 02:19:06,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 02:19:06,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 02:19:06,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 02:19:06,236 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 02:19:06,237 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 02:19:06,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-10-27 02:19:06,299 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59928da4b/c46d4bf9ffd44d949f2f9fd2cab09054/FLAG4c62143f5 [2018-10-27 02:19:06,935 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 02:19:06,936 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label07_true-unreach-call.c [2018-10-27 02:19:06,952 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59928da4b/c46d4bf9ffd44d949f2f9fd2cab09054/FLAG4c62143f5 [2018-10-27 02:19:06,971 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59928da4b/c46d4bf9ffd44d949f2f9fd2cab09054 [2018-10-27 02:19:06,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 02:19:06,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 02:19:06,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 02:19:06,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 02:19:06,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 02:19:06,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:19:06" (1/1) ... [2018-10-27 02:19:07,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bb8d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07, skipping insertion in model container [2018-10-27 02:19:07,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:19:06" (1/1) ... [2018-10-27 02:19:07,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 02:19:07,077 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 02:19:07,510 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:19:07,514 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 02:19:07,645 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 02:19:07,663 INFO L193 MainTranslator]: Completed translation [2018-10-27 02:19:07,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07 WrapperNode [2018-10-27 02:19:07,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 02:19:07,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 02:19:07,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 02:19:07,665 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 02:19:07,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 02:19:07,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 02:19:07,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 02:19:07,867 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 02:19:07,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... [2018-10-27 02:19:07,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 02:19:07,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 02:19:07,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 02:19:07,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 02:19:08,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 02:19:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 02:19:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 02:19:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 02:19:08,075 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 02:19:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 02:19:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 02:19:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 02:19:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 02:19:11,730 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 02:19:11,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:19:11 BoogieIcfgContainer [2018-10-27 02:19:11,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 02:19:11,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 02:19:11,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 02:19:11,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 02:19:11,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:19:06" (1/3) ... [2018-10-27 02:19:11,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eea927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:19:11, skipping insertion in model container [2018-10-27 02:19:11,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:19:07" (2/3) ... [2018-10-27 02:19:11,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eea927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:19:11, skipping insertion in model container [2018-10-27 02:19:11,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:19:11" (3/3) ... [2018-10-27 02:19:11,740 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label07_true-unreach-call.c [2018-10-27 02:19:11,751 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 02:19:11,761 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 02:19:11,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 02:19:11,821 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 02:19:11,821 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 02:19:11,821 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 02:19:11,822 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 02:19:11,822 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 02:19:11,822 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 02:19:11,822 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 02:19:11,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 02:19:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-27 02:19:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-27 02:19:11,864 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:19:11,866 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:19:11,868 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:19:11,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:19:11,875 INFO L82 PathProgramCache]: Analyzing trace with hash 154949884, now seen corresponding path program 1 times [2018-10-27 02:19:11,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:19:11,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:19:11,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:19:11,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:19:11,926 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:19:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:19:12,324 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:19:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:19:12,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 02:19:12,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 02:19:12,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:19:12,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 02:19:12,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 02:19:12,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 02:19:12,392 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-27 02:19:14,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:19:14,893 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-27 02:19:14,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 02:19:14,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-27 02:19:14,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:19:14,916 INFO L225 Difference]: With dead ends: 574 [2018-10-27 02:19:14,917 INFO L226 Difference]: Without dead ends: 356 [2018-10-27 02:19:14,924 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 02:19:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-27 02:19:14,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-27 02:19:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-27 02:19:14,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-10-27 02:19:14,999 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 52 [2018-10-27 02:19:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:19:14,999 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-10-27 02:19:15,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 02:19:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-10-27 02:19:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 02:19:15,010 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:19:15,011 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:19:15,011 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:19:15,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:19:15,013 INFO L82 PathProgramCache]: Analyzing trace with hash -169844341, now seen corresponding path program 1 times [2018-10-27 02:19:15,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:19:15,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:19:15,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:19:15,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:19:15,017 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:19:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:19:15,410 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 02:19:15,665 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 02:19:15,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:19:15,666 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:19:15,667 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-10-27 02:19:15,670 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-27 02:19:15,763 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:19:15,763 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:19:18,245 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:19:20,793 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:19:20,795 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 02:19:20,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:19:20,807 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:19:22,375 INFO L227 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 76.97% of their original sizes. [2018-10-27 02:19:22,376 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:19:27,461 INFO L415 sIntCurrentIteration]: We unified 122 AI predicates to 122 [2018-10-27 02:19:27,461 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:19:27,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:19:27,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 19 [2018-10-27 02:19:27,463 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:19:27,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 02:19:27,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 02:19:27,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-27 02:19:27,465 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 17 states. [2018-10-27 02:20:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:20:49,115 INFO L93 Difference]: Finished difference Result 1448 states and 2620 transitions. [2018-10-27 02:20:49,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-27 02:20:49,116 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 123 [2018-10-27 02:20:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:20:49,128 INFO L225 Difference]: With dead ends: 1448 [2018-10-27 02:20:49,128 INFO L226 Difference]: Without dead ends: 1098 [2018-10-27 02:20:49,135 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=171, Invalid=699, Unknown=0, NotChecked=0, Total=870 [2018-10-27 02:20:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2018-10-27 02:20:49,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 793. [2018-10-27 02:20:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-10-27 02:20:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1079 transitions. [2018-10-27 02:20:49,238 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1079 transitions. Word has length 123 [2018-10-27 02:20:49,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:20:49,238 INFO L481 AbstractCegarLoop]: Abstraction has 793 states and 1079 transitions. [2018-10-27 02:20:49,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-27 02:20:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1079 transitions. [2018-10-27 02:20:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-27 02:20:49,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:20:49,244 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:20:49,245 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:20:49,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:20:49,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1829551783, now seen corresponding path program 1 times [2018-10-27 02:20:49,245 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:20:49,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:20:49,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:20:49,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:20:49,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:20:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:20:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-27 02:20:49,516 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:20:49,516 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:20:49,516 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-10-27 02:20:49,517 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-27 02:20:49,522 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:20:49,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:20:50,939 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 02:20:57,782 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 02:20:57,782 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 02:20:57,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:20:57,788 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 02:20:59,700 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-27 02:20:59,700 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 02:21:05,679 INFO L415 sIntCurrentIteration]: We unified 198 AI predicates to 198 [2018-10-27 02:21:05,680 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 02:21:05,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 02:21:05,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [4] total 16 [2018-10-27 02:21:05,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 02:21:05,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 02:21:05,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 02:21:05,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-27 02:21:05,682 INFO L87 Difference]: Start difference. First operand 793 states and 1079 transitions. Second operand 14 states. [2018-10-27 02:22:47,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 02:22:47,474 INFO L93 Difference]: Finished difference Result 2196 states and 3263 transitions. [2018-10-27 02:22:47,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-27 02:22:47,475 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2018-10-27 02:22:47,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 02:22:47,487 INFO L225 Difference]: With dead ends: 2196 [2018-10-27 02:22:47,488 INFO L226 Difference]: Without dead ends: 1553 [2018-10-27 02:22:47,491 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2018-10-27 02:22:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2018-10-27 02:22:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1542. [2018-10-27 02:22:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2018-10-27 02:22:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1892 transitions. [2018-10-27 02:22:47,671 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1892 transitions. Word has length 199 [2018-10-27 02:22:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 02:22:47,672 INFO L481 AbstractCegarLoop]: Abstraction has 1542 states and 1892 transitions. [2018-10-27 02:22:47,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-27 02:22:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1892 transitions. [2018-10-27 02:22:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-27 02:22:47,677 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 02:22:47,677 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 02:22:47,678 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 02:22:47,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 02:22:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1143072624, now seen corresponding path program 1 times [2018-10-27 02:22:47,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 02:22:47,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:22:47,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:22:47,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 02:22:47,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 02:22:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:22:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 02:22:47,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:22:47,999 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 02:22:47,999 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-27 02:22:47,999 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-27 02:22:48,004 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 02:22:48,005 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 02:22:49,529 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 02:22:59,653 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 02:22:59,655 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 02:22:59,656 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 02:22:59,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 02:22:59,656 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 02:22:59,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 02:22:59,681 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 02:22:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 02:22:59,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 02:22:59,850 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 02:23:00,052 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 02:23:00,052 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 02:23:00,057 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 02:23:00,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 02:23:00 BoogieIcfgContainer [2018-10-27 02:23:00,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 02:23:00,059 INFO L168 Benchmark]: Toolchain (without parser) took 233070.54 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.8 GB). Peak memory consumption was 872.0 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,060 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 02:23:00,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 754.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,062 INFO L168 Benchmark]: Boogie Preprocessor took 131.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,063 INFO L168 Benchmark]: RCFGBuilder took 3732.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.1 MB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,064 INFO L168 Benchmark]: TraceAbstraction took 228325.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 786.0 MB. Max. memory is 7.1 GB. [2018-10-27 02:23:00,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 201.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 754.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -833.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3732.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.1 MB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228325.74 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 786.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was analyzing trace of length 207 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 228.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 186.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 504 SDtfs, 2782 SDslu, 531 SDs, 0 SdLazy, 3534 SolverSat, 864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 344 GetRequests, 290 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1542occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 25.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9934273097826087 AbsIntWeakeningRatio, 0.14375 AbsIntAvgWeakeningVarsNumRemoved, 346.25 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 189352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/206 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown